/Engine/Source/Runtime/Foliage/Public/ProceduralFoliageComponent.h
Runs the procedural foliage simulation, removes the old result, creates instances with the new result
True if the simulation succeeded
bool ResimulateProceduralFoliage ( [TFunctionRef](API\Runtime\Core\GenericPlatform\TFunctionRef)< void(const [TArray](API\Runtime\Core\Containers\TArray)< [FDesiredFoliageInstance](API\Runtime\Foliage\FDesiredFoliageInstance) > &)> AddInstancesFunc )